The phrase "headphone companies" refers to businesses that produce and sell headphones, which are devices you wear over your ears to listen to music or audio. Full definition
This being the case, more and more headphone companies are making an effort to step up their wireless game. (businessinsider.com)
We researched a lot of headphone companies and popular headphone brands as we dug into the reviews, so we'd like to share some of that knowledge with you. (geekwrapped.com)
It seems like every new fitness band on the market has a built - in heart - rate sensor, but now headphone companies are baking sensors into their devices, too. (pcworld.com)